首页
登录
职称英语
What is the most important function of trees? [br] [originaltext] Trees are
What is the most important function of trees? [br] [originaltext] Trees are
游客
2023-11-02
63
管理
问题
What is the most important function of trees? [br]
Trees are useful to man in three very important ways: they supply him with wood and other products; they give him shade; and they help to prevent droughts and floods. Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important. 2000 years ago a country cut down its trees to build warships to gain itself an empire. It gained the empire but, without its trees, its soil became hard and poor. Even if a government realizes the importance of adequate supply of trees, it is difficult for it to persuade the villager to see this. The villager wants wood to cook his food with; and he can earn money by producing charcoal or selling wood to the townsman. So, unless the government has a good control system, the forests will slowly disappear. The results are even more serious: for where there are trees their roots break the soil up—allowing the rain to sink in—and also bind the soil, thus preventing its being washed away easily; but where there are no trees, the rain falls on hard ground and flows away from the surface, causing floods and carrying away with it the rich topsoil, in which crops grow so well.
选项
A、The three benefits brought by trees.
B、Trees and soil conservation.
C、The various uses of trees.
D、The attitude of the government towards trees.
答案
B
解析
主旨题。文章开篇介绍了树木的3种好处,然后就其中第3个好处展开描述,即保护土壤方面的作用,故选B项。
转载请注明原文地址:https://www.tihaiku.com/zcyy/3151127.html
相关试题推荐
What’stheproblemmostAmericancollegesarefacing?[br][originaltext](1
What’stheproblemmostAmericancollegesarefacing?[originaltext](17)Amer
WhichofthefollowingisNOTincludedinthepassage?[br][originaltext]W
WhichofthefollowingisNOTincludedinthepassage?[originaltext]Waterp
What’sthepassagemainlytalkingabout?[originaltext]You’veprobablyheard
Whatisthewomantryingtodo?[br][originaltext]W:John,haveyouchosenap
Whatisthewomantryingtodo?[originaltext]W:John,haveyouchosenaphysica
Whathasthewomanbeendoingnow?[br][originaltext]W:Hi,Steve.M:Hi,Sus
Whatwillthemanprobablydofirstaftergraduation?[br][originaltext]M:Wha
Whatwillthemanprobablydofirstaftergraduation?[originaltext]M:Whatdoy
随机试题
ListentopeoplefromtheNationalFoodCouncilcomplainingtoretailersabo
Questions27-30ForeachquestiononlyONEofthechoicesiscorrect.Writethe
TheDodgeBrothersA)Itwas100yearsagothisweektha
应取消出版专业职业资格的情况包括( )等。A.连续三年未能完成经济考核指标
排水主立管及水平干管管道均应做通球试验,通球球径不小于排水管道管径的2/3,而且
根据2010年1月国务院常务会议精神,2013~2015年三网融合的阶段性目标是
在宏观经济政策目标中,物价稳定指的是:A:价格指数持续上升B:价格指数固定不变
2020年,全国软件和信息技术服务业(即软件业)企业超4万家,累计完成软件业务收
如果2011年下半年各项服务性消费支出的数值与2011年上半年相同,
某工程单元控制室采用控制和动力直流系统分设的方式,动力采用关端电池220V直流系
最新回复
(
0
)